CN210563324U

CN210563324U - Retractable guide rail device for lifting scaffold

Info

Publication number: CN210563324U
Application number: CN201921304248.1U
Authority: CN
Inventors: 王法财; 李卫; 杨学峰; 付道营
Original assignee: Shandong Zhongjia Safety Technology Co Ltd
Current assignee: Shandong Zhongjia Safety Technology Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-05-19
Anticipated expiration: 2029-08-13

Abstract

The utility model discloses a collapsible guide rail device for lifting foot hand rack, which comprises a guide rail, the guide rail outside is equipped with the race, the race bottom is equipped with the even pore in interval, the pore embeds there is the cardboard, cardboard and branch tip welding, branch is arranged in inboard pole hole and slides each other with the pole hole, the pole hole runs through the guide rail both sides, the branch middle part is equipped with the baffle, the baffle is arranged in the through-hole and slides each other with the through-hole. The utility model discloses a reduce the guide rail and attach the friction between the wall support to the life of extension guide rail makes the guide rail fixed more firm, changes the pinhole structure, and the resistant shearing force of hoisting pin avoids attaching the uneven and deformation of wall support atress, and then improves the service quality of scaffold frame.

Description

Retractable guide rail device for lifting scaffold

Technical Field

The utility model relates to a scaffold technical field specifically is a collapsible guide rail device for lifting foot hand rack.

Background

Scaffolding refers to various supports erected on a construction site for workers to handle and solve vertical and horizontal transportation. The general term of the building industry refers to the places which cannot be directly constructed on the building site and are used for exterior wall, interior decoration or high floor height. The lifting motion of the self-lifting scaffold is realized by alternately lifting the movable frame and the fixed frame through manual or electric chain block. From the structure of the lifting frame, the movable frame and the fixed frame can move up and down relatively. When the scaffold needs to be lifted, one of the movable frame and the fixed frame is still anchored on the wall, the other frame is lifted by using the chain block, and relative motion is generated between the two frames. Attach the wall through adjustable shelf and mount in turn, go up and down each other, the scaffold frame can go up and down along the preformed hole successive layer on the wall body. Lifting of the lifting scaffold is realized by adopting the guide rail and the wall-attached support to slide between the guide rail and the wall-attached support so as to lift the scaffold fixedly connected with the outer side of the guide rail, the guide rail and the wall-attached support are required to be orderly corresponding during installation, the contact surface between the support and the guide rail is large, friction is increased, the guide rail is labor-consuming in the installation or lifting process, abrasion is large, and the service life is shortened. Accordingly, one skilled in the art provides a retractable rail assembly for a lifting scaffold to solve the problems set forth in the background art described above.

Disclosure of Invention

An object of the utility model is to provide a collapsible guide rail device for lifting foot hand rack to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a retractable guide rail device for a lifting scaffold comprises a guide rail, wherein a wheel groove is arranged on the outer side of the guide rail, plate grooves with uniform intervals are arranged at the bottom of the wheel groove, clamping plates are arranged in the plate grooves and are welded with the end parts of supporting rods, the supporting rods are positioned in rod holes on the inner side and slide with the rod holes, the rod holes penetrate through the two sides of the guide rail, baffles are arranged in the middle parts of the supporting rods, the baffles are positioned in through holes and slide with the through holes, the through holes penetrate through the upper and lower ends of the guide rail, buffer springs are sleeved on the supporting rods between the baffles and the clamping plates, the two sides of each buffer spring respectively abut against the baffles and the inner walls of the through holes, the side surfaces of the wheel grooves abut against a roller box, the roller is rotatably connected with a wall-attached support through a wheel shaft, the wheel shaft is welded on the inner side of the wall-, the clamping wheel is rotatably connected with the outer side of the guide rail.

As a further aspect of the present invention: the cross section of the guide rail is in a concave shape, the guide rail is connected with the guide rail on the other side through a supporting rod, the guide rails on the two sides are symmetrical about the supporting rod, a supporting plate is welded on the lower side face of the guide rail, a pin hole is formed in the bottom of a wheel groove in the outer side of the guide rail, and the outline of the pin hole is in a shape of an optimal arc.

As a further aspect of the present invention: the bottom surface and the side surface of the wheel groove are connected through a round angle, the direct-connection surface of the roller is in a splicing shape of a cylinder and a circular truncated cone, and the roller is in interference fit with the wheel groove.

As a further aspect of the present invention: the plate groove depth is greater than the thickness of the clamping plate, the clamping plate and the baffle are rectangular and have the same size, and the edge of the baffle is separated from the inner wall of the through hole.

As a further aspect of the present invention: the supporting rod is cylindrical, clamping plates are welded at two ends of the supporting rod, the distance between the clamping plates on the same side of the baffle and the supporting rod is larger than the length of a rod hole between the side edge of the through hole and the plate groove, and the buffer spring is in a compression state between the baffle and the side wall of the through hole.

As a further aspect of the present invention: the wall-attached support comprises a cross frame and two supports, the cross frame is welded in the middle of the two supports, bolt holes are formed in the upper portions of the supports, rollers and clamping wheels are sequentially connected to the lower portions of the supports from top to bottom, and the distance between the upper side face of each roller and the upper side face of each clamping wheel is equal to the distance between the upper side face of each wheel groove and the outer side of each guide rail.

Compared with the prior art, the beneficial effects of the utility model are that:

1. use and connect between branch with between the guide rail of both sides, guarantee that the overall structure of guide rail is firm, be equipped with the through-hole inside the guide rail, branch that is located in the through-hole can slide in a less section distance with the guide rail of both sides under spring action, make to have one section buffer distance between the slide rail of both sides, make the guide rail and attach the buffering that has a section distance between the wall support, when the installation guide rail or lift, make the guide rail can shrink in less displacement, reduce the guide rail with attach the friction between the wall support with this, thereby the life of extension guide rail.

2. The roller and the clamping wheel are connected with the guide rail together, so that the friction between the roller and the guide rail is reduced, the guide rail is fixed in the transverse direction, the guide rail is fixed more firmly,

3. the rectangular pin hole is changed into a cylindrical shape, when the scaffold is fixed, a tangent plane cylindrical pin with the same shape as the pin hole can be inserted into the pin hole, so that the guide rail and the wall-attached support are clamped with each other, the shearing resistance of the cylindrical pin is stronger than that of the rectangular pin, the bottom of the cylindrical pin is of a planar structure, the contact area of the bottom of the cylindrical pin and the surface of the wall-attached support is increased, the local pressure is reduced, and the deformation of the wall-attached support due to uneven stress is avoided.

Drawings

Fig. 1 is a schematic structural view of a retractable rail assembly for a lifting scaffold;

fig. 2 is a side view of a rail in a retractable rail assembly for a lifting scaffold;

fig. 3 is a cross-sectional view of a guide rail in a retractable guide rail apparatus for a lifting scaffold;

fig. 4 is a schematic view of a wall attachment bracket of a retractable track assembly for a lifting scaffold.

In the figure: 1. a guide rail; 2. a strut; 3. a keyhole; 4. a wall-attached support; 5. a wheel groove; 6. a through hole; 7. clamping the wheel; 8. a rod hole; 9. a plate groove; 10. a pin hole; 11. a buffer spring; 12. a baffle plate; 13. clamping a plate; 14. a cross frame; 15. a roller; 16. a wheel axle; 17. a support; 18. and (4) a support plate.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, a retractable guide rail device for a lifting scaffold includes a guide rail 1, a wheel groove 5 is disposed on an outer side of the guide rail 1, a plate groove 9 with uniform intervals is disposed on a bottom of the wheel groove 5, a snap plate 13 is disposed in the plate groove 9, the snap plate 13 is welded to an end of a support rod 2, the support rod 2 is disposed in an inner rod hole 8 and slides with the rod hole 8, the rod hole 8 penetrates both sides of the guide rail 1, a baffle 12 is disposed in a middle portion of the support rod 2, the baffle 12 is disposed in a through hole 6 and slides with the through hole 6, the through hole 6 penetrates both upper and lower ends of the guide rail 1, a buffer spring 11 is sleeved on the support rod 2 between the baffle 12 and the snap plate 13, both sides of the buffer spring 11 respectively abut against inner walls of the baffle 12 and the through hole 6, a side surface of the wheel groove 5 abuts against a roller 15, the roller 15 is rotatably, the inboard of attaching wall support 4 below gyro wheel 15 is connected with card wheel 7 through shaft 16 rotation, card wheel 7 rotates with the guide rail 1 outside and is connected, during installation or promotion guide rail 1, the distance between two card wheels 7 on attaching wall support 4 is confirmed, the distance between two gyro wheels 15 is confirmed, guide rail 1 can make guide rail 1 shrink in the certain limit when attaching wall support 4 and sliding the pressure that receives gyro wheel 15, thereby reduce the frictional force with gyro wheel 15, it is comparatively laborsaving when making guide rail 1 ann or promote, the wearing and tearing of guide rail 1 have been reduced, reach increase of service life's purpose.

The cross section of the guide rail 1 is concave, the guide rail 1 is connected with the guide rail 1 at the other side through a support rod 2, the guide rails 1 at two sides are symmetrical about the support rod 2, a support plate 18 is welded on the lower side surface of the guide rail 1, a pin hole 10 is formed in the bottom of a wheel groove 5 at the outer side of the guide rail 1, the outline of the pin hole 10 is in a shape of a perfect arc, when the scaffold is fixed, the support plate 18 is used for being connected with the scaffold, a cylindrical pin is inserted into the pin hole 10 to enable the guide rail 1 to be clamped with a wall-attached support 4, and the guide rail 1 is prevented from displacing with the wall-attached; the bottom surface and the side surface of the wheel groove 5 are connected through a round angle, the direct connection surface of the roller 15 is in a splicing shape of a cylinder and a circular truncated cone, the roller 15 is in interference fit with the wheel groove 5, one side of the roller 15 is connected with the side surface of the wheel groove 5, the guide rail 1 and the wall-attached support 4 are kept fixed in the horizontal direction, and the guide rail 1 is prevented from tipping.

The depth of the plate groove 9 is greater than the thickness of the clamping plate 13, the clamping plate 13 and the baffle plate 12 are both rectangular and have the same size, the edge of the baffle plate 12 is separated from the inner wall of the through hole 6, the distance between the baffle plate 12 and the clamping plate 13 provides a buffer space for the guide rails 1 on two sides, and the rectangular baffle plate 12 is positioned in the through hole 6 to prevent the sliding shaft from rotating; the support rod 2 is cylindrical, clamping plates 13 are welded at two ends of the support rod 2, the distance between the baffle plate 12 and the clamping plate 13 on the same side of the support rod 2 is larger than the length of a rod hole 8 between the side edge of the through hole 6 and the plate groove 9, the buffer spring 11 is in a compressed state between the baffle plate 12 and the side wall of the through hole 6, the guide rails 1 on two sides are kept at the position with the maximum relative distance under the pressure of the buffer spring 11, and the distance between the two guide rails 1 can be changed by further compressing the buffer spring 11 through the baffle plate 12 and the inner wall of the through hole 6; attach wall support 4 and include crossbearer 14 and two supports 17, crossbearer 14 welds in two supports 17 middle parts, support 17 upper portion is equipped with keyhole 3, support 17 lower part from the top down has connected gradually gyro wheel 15, card wheel 7, the distance between the side on gyro wheel 15 and the card wheel 7 equals the distance between side and the guide rail 1 outside on race 5, it can use the bolt to pass keyhole 3 and be fixed in on the wall body to attach wall support 4, crossbearer 14 is used for the distance between two fixed supports 17 to the distance between two fixed gyro wheels 15.

The utility model discloses a theory of operation is: when installing guide rail 1 or lifting scaffolding, guide rail 1 slides on attaching wall support 4, guide rail 1 side and attach and oppress each other and produce frictional force between the wall support 4, both sides guide rail 1 receives inboard effort respectively under the pressure effect, guide rail 1 and branch 2 produce relative slip, cardboard 13 slides in the board groove 9, through-hole 6 compresses buffer spring 11 with baffle 12 and makes both sides guide rail 1 slide to the inboard, thereby reduce guide rail 1 and attach the pressure between the wall support 4 on, reduce frictional force when lifting, can make guide rail 1 and attach wall support 4 contact all the time again, guarantee its stability of connecting, reach the reduction wearing and tearing, increase of service life's purpose.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a collapsible guide rail device for lifting scaffolding, includes guide rail (1), its characterized in that, guide rail (1) outside is equipped with race (5), race (5) bottom is equipped with board groove (9) that the interval is even, board groove (9) embed cardboard (13), cardboard (13) and branch (2) tip welding, branch (2) are arranged in inboard pole hole (8) and slide each other with pole hole (8), pole hole (8) run through guide rail (1) both sides, branch (2) middle part is equipped with baffle (12), baffle (12) are arranged in through-hole (6) and slide each other with through-hole (6), both ends about through-hole (6) run through in guide rail (1), the cover has buffer spring (11) on branch (2) between baffle (12) and cardboard (13), buffer spring (11) both sides respectively with baffle (12), Through-hole (6) inner wall is inconsistent, race (5) side is contradicted with gyro wheel (15) case, gyro wheel (15) are connected with attaching wall support (4) rotation through shaft (16), shaft (16) weld in attaching wall support (4) inboard, attach wall support (4) inboard of gyro wheel (15) below is connected with card wheel (7) rotation through shaft (16), card wheel (7) are connected with guide rail (1) outside rotation.

2. A retractable rail device for a lifting scaffold, according to claim 1, wherein the cross section of the rail (1) is "concave", the rail (1) is connected with the rail (1) on the other side through a strut (2), the rails (1) on both sides are symmetrical about the strut (2), a support plate (18) is welded on the lower side of the rail (1), a pin hole (10) is arranged at the bottom of the wheel groove (5) on the outer side of the rail (1), and the outline of the pin hole (10) is preferably arc-shaped.

3. A retractable guide rail device for a lifting scaffold according to claim 1, wherein the bottom surface and the side surface of the wheel groove (5) are connected by a round angle, the straight joint surface of the roller (15) is in a splicing shape of a cylinder and a circular truncated cone, and the roller (15) is in interference fit with the wheel groove (5).

4. A retractable guide rail arrangement for a lifting scaffold, according to claim 1, wherein the depth of the slot (9) is greater than the thickness of the catch (13), the catch (13) and the stop (12) are both rectangular and of the same size, and the edge of the stop (12) is spaced from the inner wall of the through hole (6).

5. A retractable guide rail apparatus for a lifting scaffold according to claim 1, wherein the support rod (2) is cylindrical, the two ends of the support rod (2) are welded with snap-in plates (13), the distance between the baffle (12) and the snap-in plates (13) on the same side of the support rod (2) is greater than the length of the rod hole (8) between the side of the through hole (6) and the plate groove (9), and the buffer spring (11) is in a compressed state between the baffle (12) and the side of the through hole (6).

6. A retractable rail assembly for a lifting scaffold according to claim 1, wherein the wall-attached support (4) comprises a cross frame (14) and two brackets (17), the cross frame (14) is welded to the middle of the two brackets (17), the upper part of the bracket (17) is provided with a bolt hole (3), the lower part of the bracket (17) is sequentially connected with a roller (15) and a clamping wheel (7) from top to bottom, and the distance between the upper side of the roller (15) and the upper side of the clamping wheel (7) is equal to the distance between the upper side of the wheel groove (5) and the outer side of the rail (1).